GMP Certificate for Amazon -- Do You Need One?

Amazon's supplement compliance team routinely asks sellers for a "GMP certificate" during account reviews, new product approvals, and listing reinstatement requests. The problem: a GMP certificate does not exist. The FDA does not issue GMP certificates. The NSF, USP, and third-party audit organizations issue GMP registration letters or audit reports -- not certificates -- and Amazon's own policy acknowledges this. Here is exactly what Amazon actually wants, what documents satisfy their request, and how to avoid the most common submission mistakes that get sellers stuck in compliance limbo.

Why Amazon asks for a GMP certificate

Amazon's "Dietary Supplements" seller policy requires that all supplements listed on the platform are manufactured in facilities compliant with 21 CFR 111 (Current Good Manufacturing Practice for Dietary Supplements). The policy is Amazon's way of enforcing the federal requirement that supplement manufacturers follow GMP.

During compliance reviews, Amazon's system and seller support representatives use the shorthand "GMP certificate" to mean "proof that your product was manufactured in a GMP-compliant facility." The language is imprecise, but the expectation is clear: Amazon wants documentation that ties your product to a facility operating under GMP.

If you sell supplements on Amazon and have not been asked for GMP documentation yet, plan as if you will be. Amazon has progressively tightened enforcement since 2021, and compliance document requests are now routine for new ASINs and periodic reviews of existing listings.

For the full set of Amazon testing requirements including COA expectations, see our guide on Amazon supplement compliance testing.

What Amazon's policy actually says

Amazon's dietary supplements policy (as of the most recent published version) states that sellers must ensure:

• Products are manufactured in compliance with 21 CFR 111 (or equivalent for international manufacturers exporting to the US)
• Products are tested by an ISO/IEC 17025 accredited laboratory to confirm identity, potency, purity, and limits on contaminants
• Documentation including Certificates of Analysis (COAs) and evidence of GMP compliance is maintained and must be provided upon request

The policy does not use the term "GMP certificate." It refers to "evidence of GMP compliance," which is a meaningfully different standard. Amazon's own internal training documents for seller support staff use the phrase "GMP certificate," which creates confusion when sellers try to understand what to provide.

⚠️ Note

If a seller support representative asks for a "GMP certificate" and you reply "those do not exist," they will close your case. Instead, provide the documents described below and explain that these are the recognized forms of GMP documentation accepted by the FDA and industry.

What actually satisfies Amazon's GMP requirement

You have three main options for providing GMP documentation to Amazon. Any one of these will typically satisfy the requirement, though some Amazon compliance reviewers may ask for more than one.

Option 1: Third-party GMP audit certificate or registration letter

Third-party organizations audit supplement manufacturing facilities against 21 CFR 111 requirements and issue documentation confirming GMP compliance. The most recognized organizations are:

Option 2: FDA Form 483 with close-out response

If your contract manufacturer has been inspected by the FDA and received a Form 483, the combination of the 483, the manufacturer's written response, and (ideally) an FDA close-out letter or an Establishment Inspection Report (EIR) that shows the observations were resolved can serve as GMP documentation. The absence of an FDA Warning Letter following a 483 is also useful evidence.

Option 3: Internal GMP compliance documentation package

If your manufacturer is not registered with NSF or USP, you can compile a GMP compliance documentation package. This should include:

• The manufacturer's SOP index or quality manual showing documented procedures for 21 CFR 111 requirements
• Certificates of Analysis (COAs) from ISO 17025 accredited labs for the specific product
• A signed letter from the manufacturer's quality unit stating that the product was manufactured in compliance with 21 CFR 111
• The manufacturer's FDA registration and any recent FDA inspection records

Option 3 is the weakest option and is more likely to be rejected or require follow-up. Amazon reviewers are trained to look for third-party verification. If you go this route, make sure the documentation is organized, complete, and clearly references the ASIN and lot numbers associated with your listing.

The difference between GMP registration, certification, and compliance

This is the single most important distinction to understand before submitting anything to Amazon:

GMP Compliance means your manufacturing facility actually follows the requirements of 21 CFR 111. It is a state of being, not a document. The FDA determines compliance through inspections. Being GMP compliant means your personnel are qualified, your equipment is maintained, your production and process controls are documented, your laboratory operations meet 111.75 standards, and your records are complete.

GMP Registration is a voluntary program offered by third-party organizations (NSF, USP, UL). The organization sends auditors to your facility, verifies GMP compliance, and issues a registration letter. This is currently the closest thing to a "GMP certificate" that exists. Registration typically requires annual audits and must be renewed.

GMP Certification does not formally exist. The FDA does not certify dietary supplement GMP compliance. No government agency issues a GMP certificate for dietary supplements. When Amazon or anyone else asks for a "GMP certificate," they are using imprecise language to ask for a GMP registration letter from a third-party auditor.

Do not go to a document service that promises to create a "GMP certificate" for a fee. These documents carry no weight with Amazon or the FDA, and submitting fabricated documents to Amazon can result in permanent account suspension.

If Amazon rejects your GMP submission

Rejections happen, usually for one of these reasons:

1. Wrong document type. You submitted a raw material COA when they wanted GMP documentation. Read the rejection reason carefully and match your document to what they asked for.
2. The GMP registration letter does not reference your product. An NSF registration letter that says "Facility X is GMP registered" with no link to your specific product or brand may be rejected. Ask your manufacturer for a letter that explicitly references your product or brand name.
3. Expired registration. GMP registrations typically require annual renewal. Check the expiration date on any registration letter before submitting. An expired letter will be rejected.
4. Document does not match the account business name. If your seller account is under "ABC Supplements LLC" but the GMP documentation lists "XYZ Manufacturing Inc." with no clear connection, Amazon may reject it. Include a letter explaining the relationship.
5. Non-US GMP standard submitted without explanation. If your manufacturer holds TGA (Australia), Health Canada, or EU GMP certification, Amazon reviewers may not recognize it. Include a brief explanation that these standards are equivalent to or exceed 21 CFR 111.

When you resubmit, do not just re-upload the same file. Address the rejection reason directly in the Plan of Action or additional comments field.

For more on navigating Amazon's entire compliance framework, see our Amazon approved labs guide.

How to get GMP documentation if your manufacturer does not have it

If your manufacturer has no third-party GMP registration and no FDA inspection history, you have three practical paths:

Short term: Compile Option 3 (internal GMP documentation package) described above. This may work for an initial Amazon submission but is not a long-term solution.

Medium term: Ask your manufacturer to pursue NSF or USP GMP registration. The process takes three to six months and costs the manufacturer approximately $5,000 to $15,000 depending on facility size and scope. Some manufacturers will share the cost with their largest clients.

Long term: Switch to a contract manufacturer that already holds NSF or USP GMP registration. There are hundreds of registered facilities in the US. The cost per unit may be slightly higher, but the compliance documentation gap disappears.

If you are in the process of selecting a new manufacturer, ask for their GMP registration documentation during the vetting process -- before you place an order. For guidance on the testing side of vendor qualification, see our first batch testing checklist.

Quick Reference

Lab Category Matching

Real Methods Explained

What Sample to Send

GMP documentation is facility-level, not product-level. You do not send a sample. You send documents that demonstrate the facility is GMP compliant and that your product was manufactured there. For Amazon submissions, pair your GMP documentation with product-specific COAs from ISO 17025 accredited labs.

Expected Turnaround Time

Accreditation Notes

GMP registration from NSF or USP requires an on-site facility audit by qualified auditors. These organizations are recognized globally. NSF/ANSI 455-2 is the American National Standard for dietary supplement GMP. For manufacturers exporting to the US, NSF and USP both conduct international audits. For domestic US manufacturers, FDA inspection history plus third-party registration is the strongest compliance posture.

Price Ranges

Country/Region Targeting

For products sold on Amazon.com (US marketplace), 21 CFR 111 GMP documentation applies. For Amazon.ca (Canada), Health Canada NHP GMP requirements apply -- NSF also offers NHP GMP registration. For Amazon.co.uk / Amazon.de (EU), EU GMP or equivalent is required. For Amazon.co.jp (Japan), Japanese GMP standards apply. Do not submit US GMP documentation for a non-US marketplace unless the reviewer specifically requests it. Each marketplace has its own compliance team and documentation requirements.

FAQ

Q: Does the FDA issue GMP certificates for supplement manufacturers?

No. The FDA does not issue GMP certificates or any equivalent document for dietary supplement manufacturers. The FDA conducts inspections and may issue a Form 483 with observations or, in severe cases, a Warning Letter. The FDA may also classify an inspection as NAI (No Action Indicated), VAI (Voluntary Action Indicated), or OAI (Official Action Indicated). An NAI classification is the closest you will get to a government confirmation of GMP compliance, and even that is not a certificate. Third-party registration from NSF or USP fills the documentation gap that Amazon and retailers need.

Q: Will a COA from an ISO 17025 lab satisfy Amazon's GMP documentation request?

No. A COA and GMP documentation are two separate requirements. Amazon requires both: (1) product-specific testing from an ISO 17025 accredited lab (identity, potency, heavy metals, microbiology) and (2) evidence that the product was manufactured in a GMP-compliant facility. A COA satisfies requirement 1. NSF/USP registration or equivalent satisfies requirement 2. You must provide both when Amazon asks for compliance documentation.

Q: How long does NSF GMP registration take and how much does it cost?

NSF/ANSI 455-2 GMP registration typically takes three to six months from application to registration. The process involves: application and document review (4-8 weeks), on-site audit (2-5 days), corrective action if needed (2-8 weeks), and final review and registration decision (2-4 weeks). Total cost to the manufacturer is approximately $5,000 to $15,000, including application fees, audit costs, and annual maintenance. The cost depends on facility size, number of production lines, and scope complexity.

Q: My contract manufacturer says they are "GMP compliant" but has no registration. Is that enough for Amazon?

It might be, but it is riskier. Amazon reviewers are trained to look for third-party GMP registration. A manufacturer's self-declaration of GMP compliance carries less weight and is more likely to trigger a follow-up request or rejection. If you must rely on a self-declaration, compile a complete compliance documentation package including the manufacturer's quality manual index, SOP index, batch records for your product, COAs from ISO 17025 labs, and a signed letter from the manufacturer's quality unit. Package these as a single organized PDF with a cover page linking the documentation to your ASIN. This approach works more often than a bare declaration, but it is not as reliable as NSF or USP registration.

Q: What happens if Amazon decides my GMP documentation is insufficient?

Amazon will reject your submission and provide a reason. The rejection notice usually comes through Seller Central's Account Health page or as an email from the compliance team. You will have an opportunity to resubmit, but repeated rejections can escalate to a listing suspension or, in extreme cases, an account-level action. When you resubmit, do not just re-upload the same document. Address the specific rejection reason. If the reviewer said "document does not reference product," get a new letter from the manufacturer that names your product. If they said "expired registration," get a renewed letter. If the rejection seems incorrect, use the appeal process and clearly state what you provided and why it satisfies the requirement. Keep all correspondence -- Amazon's compliance history on your account matters for future reviews.

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